H6 Systems INC
55 Lake St, Nashua, NH 03060
Operating signal within 12 months from two or more independent sources.
What they make
Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals334515H6 Systems manufactures tube-based high-power RF transmitters and high-voltage modulators used in susceptibility testing, weather radar, health care, research, and security systems. The company builds systems using magnetrons, klystrons, tetrodes, triodes, and TWTs operating at frequencies from 150 MHz to 40 GHz, and integrates these vacuum tubes with modulators, cavities, PLCs, fault systems, cooling equipment, antennas, positioners, and enclosures to produce custom transmitters.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Bae Systems Information and Electronic Systems Integration INC. | Nashua | Other Electronic Component Manufacturing 334419 | ACTIVE | 1.7 KM |
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Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | MAR 2026 | MAR 2026 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | MAR 2026 |
| CAGE CODE | SAM GOV | MAR 2026 |
| CITY | SAM GOV | MAR 2026 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | MAR 2026 |
| REGISTRATION EXPIRATION | SAM GOV | MAR 2026 |
| STATE | SAM GOV | MAR 2026 |
| WEBSITE | SAM GOV | MAR 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.


